Part Number: ISO7842DWWR

Manufacturer: Texas Instruments

Description: DGTL ISO 5700VRMS 4CH GP 16SOIC

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of ISO7842DWWR

Datasheet  ISO7842DWWR datasheet
Category Isolators
Family Digital Isolators
Manufacturer Texas Instruments
Packaging Tape & Reel (TR)
Part Status Active
Technology Capacitive Coupling
Type General Purpose
Isolated Power No
Number of Channels 4
Inputs – Side 1/Side 2 2/2
Channel Type Unidirectional
Voltage – Isolation 5700Vrms
Common Mode Transient Immunity (Min) 100kV/μs
Data Rate 100Mbps
Propagation Delay tpLH / tpHL (Max) 16ns, 16ns
Pulse Width Distortion (Max) 4.1ns
Rise / Fall Time (Typ) 1.7ns, 1.9ns
Voltage – Supply 2.25 V ~ 5.5 V
Operating Temperature -55°C ~ 125°C
Package / Case 16-SOIC (0.551″, 14.00mm Width)
Supplier Device Package 16-SOIC


The integrity of a signal and the absence of interference are of the utmost importance in the field of electronics. The ISO7842DWWR is an important component in maintaining the dependability of electronic systems because to its high-performance, quad-channel digital isolator design. This article will explore the many uses of the ISO7842DWWR and provide details on its characteristics, applications, and certifications.

Understanding the ISO7842DWWR

The ISO7842DWWR stands out as a high-performance quad-channel digital isolator that plays a crucial role in assuring the dependability of electronic systems in the ever-changing landscape of electronic components. Let’s get to know this flexible tool by first taking a detailed look at its essential features and technical characteristics.

An Overview of the ISO7842DWWR

The ISO7842DWWR is a component of the ISO7842x series, which is developed to ensure reliable isolation and signal integrity in many different contexts. Isolating CMOS or LVCMOS digital I/Os is a must, and this quad-channel digital isolator’s 8000-VPK (Volts Peak) isolation voltage does just that. The wide-body SOIC-16 package of the “DWWR” variation of this device makes it ideal for incorporation into complex electronic systems.

Key Highlights

  1. Quad-Channel Design:The ISO7842DWWR’s four isolated channels make it a great choice if numerous signals must be kept separate.
  2. High Isolation Voltage:With an isolation voltage of 8000 VPK, this gadget excels at guaranteeing that no unwanted electrical signals or noise pass through the isolation barrier.
  3. Reinforced Isolation Certifications:The ISO7842DWWR has received enhanced isolation certifications from reputable organizations such as CQC, VDE, CSA, and TUV. This means it meets high safety standards, giving you peace of mind in applications where safety is critical.
  4. Low Power Consumption:Despite its excellent performance, the ISO7842DWWR is designed to be power-efficient, using only 1.7 mA per channel at 1 Mbps, which is critical for energy-sensitive applications.
  5. Wide Supply Range:This digital isolator has a wide supply voltage range of 2.25 V to 5.5 V, providing versatility in a variety of voltage settings.
  6. High Signaling Rate:The ISO7842DWWR, which can handle signaling speeds of up to 100 Mbps, ensures that high-speed data connection remains interference-free.
  7. Low Propagation Delay:This device ensures low signal delay, which is crucial in time-sensitive applications, with a typical propagation delay of 11 ns at 5-V supply.
  8. Industry-Leading CMTI:The ISO7842DWWR has a Common-Mode Transient Immunity (CMTI) of 100 kV/s, making it resistant to common-mode voltage transients.

Key Features and Specifications

Let’s take a closer look at the features and specs that make the ISO7842DWWR a top choice for engineers and designers in a variety of sectors.

  • Supply Voltage Range:25 V to 5.5 V
  • Isolation Barrier Life:Over 40 years, ensuring long-term reliability in your applications.
  • Wide Temperature Range:Operating flawlessly in temperatures ranging from -55°C to +125°C, making it suitable for both extreme environments and standard operating conditions.
  • Package Options:The ISO7842DWWR is available in 16-pin SOIC wide-body (DW) packaging, making it compatible with a wide range of systems.

Finally, the ISO7842DWWR is a powerful, adaptable, and safety-certified digital isolator with a wide range of functions and characteristics critical for maintaining signal integrity and eliminating interference in electronic systems. The ISO7842DWWR is a dependable solution for your isolation needs whether you operate in industrial automation, motor control, power supplies, or any of its countless uses.

Applications of ISO7842DWWR

The ISO7842DWWR, a versatile quad-channel digital isolator, is used in a variety of industries, including:

Industrial Automation

  • Precision and dependability are ensured in PLC applications.
  • Electrical noise is avoided by shielding sensitive sensors and controls.

Motor Control

  • In robotics and industry, it protects low-voltage control circuitry.
  • Improves system safety and stability in high-power motor control.

Power Supplies

  • Power supply units benefit from strict isolation.
  • Maintains system stability and reduces electrical problems.

Solar Inverters

  • Maintains the integrity of control signals in solar inverters.
  • Improves the efficiency and durability of solar power systems.

Medical Equipment

  • Ensures the safety of patients and the accuracy of data.
  • Patient monitoring, diagnostic devices, and surgical robotics all rely on it.

Hybrid Electric Vehicles

  • In HEVs and EVs, it isolates digital signals.
  • Provides assurance of the safety and dependability of complicated electrical systems.
  • The ISO7842DWWR is critical in several industries for signal integrity, interference reduction, and overall system reliability.

The Importance of Isolation in Electronics

  • Isolation in electronics is a critical topic with significant consequences for system safety and integrity. Digital isolators, such as the ISO7842DWWR, play an important role in achieving these goals.

Significance of Isolation

  1. Safety:Isolation keeps dangerous voltages and currents from entering protected zones, lowering the risk of electric shock or damage.
  2. Noise Reduction:Isolation acts as a barrier to undesirable electrical noise, protecting signal accuracy and reliability..
  3. Grounding Issues:Isolation alleviates grounding problems, allowing components with varying ground references to communicate without complications.
  4. Voltage Compatibility:Communication between components operating at different voltage levels is facilitated by isolation, which is critical in mixed-voltage situations.

How Digital Isolators Work

  1. Isolation Barrier:To ensure that no direct electrical contact occurs, digital isolators use a physical barrier, commonly constructed of silicon dioxide (SiO2).
  2. Signal Transfer:To transport digital data across the barrier while inhibiting electrical conduction, they use techniques such as optocouplers or magnetic coupling.
  3. Reinforced Isolation:ISO7842DWWR devices fulfill stringent safety criteria, making them appropriate for high-isolation applications.
  4. Low Emissions:To limit electromagnetic interference (EMI) and preserve isolated signals free of external noise, digital isolators maintain low emissions.
  5. High-Speed Signaling:Many digital isolators, including the ISO7842DWWR, are built for high-speed data transfer to fulfill the needs of a wide range of applications.

To summarize, digital isolators are critical in electronics because they ensure safety and signal integrity by avoiding interference and enabling secure data transmission. With its advanced technology and certifications, the ISO7842DWWR highlights the vital significance of isolators in electronic systems.


In summary, the ISO7842DWWR is a critical component in modern electronics, ensuring safety, reliability, and signal integrity across diverse applications. It acts as a protective barrier, meeting rigorous safety standards and reducing electromagnetic interference.

Whether used in industrial automation, healthcare equipment, or any industry, this device highlights the vital role of isolators in maintaining electronic system integrity. In our increasingly electronic-dependent world, the ISO7842DWWR stands as a beacon of safety and reliability. Contact ICRFQ, a leading electronic component distributor in China, to enhance your electronic systems’ integrity today.

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